Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

More Options

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/transparent/TransparentUpgradeableProxy.sol)
pragma solidity ^0.8.0;
import "../ERC1967/ERC1967Proxy.sol";
/**
 * @dev This contract implements a proxy that is upgradeable by an admin.
 *
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 *
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches one of the admin functions exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
 * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
 * "admin cannot fallback to proxy target".
 *
 * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
 * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
 * to sudden errors when trying to call a function from the proxy implementation.
 *
 * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/ERC1967/ERC1967Proxy.sol)
pragma solidity ^0.8.0;
import "../Proxy.sol";
import "./ERC1967Upgrade.sol";
/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 */
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializating the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _upgradeToAndCall(_logic, _data, false);
    }

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/Proxy.sol)
pragma solidity ^0.8.0;
/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)
pragma solidity ^0.8.2;
import "../beacon/IBeacon.sol";
import "../../interfaces/draft-IERC1822.sol";
import "../../utils/Address.sol";
import "../../utils/StorageSlot.sol";
/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967Upgrade {
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
pragma solidity ^0.8.0;
/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.0;
/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
{
  "optimizer": {
    "enabled": true,
    "runs": 1,
    "details": {
      "yulDetails": {
        "optimizerSteps": "dhfoDgvulfnTUtnIf [xa[r]scLM cCTUtTOntnfDIul Lcul Vcul [j] Tpeul xa[rul] xa[r]cL gvif CTUca[r]LsTOtfDnca[r]Iulc] jmul[jul] VcTOcul jmul"
      }
    }
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "viaIR": true,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"admin_","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"beacon","type":"address"}],"name":"BeaconUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"admin_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

0000000000000000000000001c1853bc7c6bff0d276da53972c0b1a066db1ae70000000000000000000000001ec63b5883c3481134fd50d5daebc83ecd2e877900000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _logic (address): 0x1C1853Bc7C6bFf0D276Da53972C0b1a066DB1AE7
Arg [1] : admin_ (address): 0x1EC63B5883C3481134FD50D5DAebc83Ecd2E8779
Arg [2] : _data (bytes): 0x

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000001c1853bc7c6bff0d276da53972c0b1a066db1ae7
Arg [1] : 0000000000000000000000001ec63b5883c3481134fd50d5daebc83ecd2e8779
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000000